<p>For the past five hundred years, the Cahills have silently dominated the world. Their desperate hunt for the 39 Clues lies behind some of history's biggest enigmas — the curse of the Hope diamond, the race to summit Mt. Everest, the wild life and death of Harry Houdini. And now — finally — the secrets are out. With an introduction by Rick Riordan, <i>The Black Book of Buried Secrets</i> reveals the shocking truth about history”s most notorious family.</p><p>In full, lush color, <i>The Black Book of Buried Secrets</i> lays bare each hidden fact, concealed strategy, top agent, lost founder, secret base and hushed-up scandal of the Clue hunt. This complete guide to the Cahills contains information on all five branches, including the notoriously elusive Madrigals. The must-know information includes:</p><p>• Full files on the enigmatic Man in Black<br />• The true purpose of the Madrigal branch<br />• The complete story of the fire that split the original Cahill family<br />• The truth about the night Hope and Arthur Cahill died<br />• Open access to the secrets of the Lucian, Ekaterina, Tomas, and Janus branches</p>It's never too late to join the hunt - especially with <i>The Black Book of Buried Secrets</i> to provide complete access to the Cahill”s most deeply-buried secrets.